emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
From: Eric S Fraga <e.fraga@ucl.ac.uk>
To: emacs-orgmode@gnu.org
Subject: Re: Viewing pdf images
Date: Mon, 10 Apr 2017 18:06:22 +0100	[thread overview]
Message-ID: <877f2s9oq9.fsf@t3610> (raw)
In-Reply-To: <c8efd5b805e447aba02e063b2f4b5327@HE1PR01MB1898.eurprd01.prod.exchangelabs.com> (Eduardo Mercovich's message of "Mon, 10 Apr 2017 16:51:45 +0000")

[-- Attachment #1: Type: text/plain, Size: 1049 bytes --]

On Monday, 10 Apr 2017 at 16:51, Eduardo Mercovich wrote:
> Hi Marvin.
>
>> I also agree that in terms of resolution (pix per inch ) pdf and 
>> jpg are the same. However, pdf (and SVG) allow the image to be 
>> scaled with little loss in image quality.
>
> Sorry to disagree, but again, pdf images can be vector (like svg) 
> and infinitely scaled or raster (bitmap, as a jpg) and in this 
> case the quality is on the file. The pdf format only adds and 
> envelope around the original jpg image, or in the conversion it 
> can be downscaled.

Totally correct.

And, further, pixels per inch (i.e. resolution) is a property of an
output (e.g. printer or screen) or input device (e.g. camera sensor),
not an inherent property of the bitmap image.  A bitmap file simply has
a size which can be expressed as pixels x pixels.  If you display an
image on a high resolution screen (without scaling) it will appear
smaller than if you display it on a lower resolution screen.

-- 
: Eric S Fraga (0xFFFCF67D), Emacs 26.0.50, Org release_9.0.5-385-g72fc2d

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 194 bytes --]

      parent reply	other threads:[~2017-04-10 17:38 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-17 12:27 Viewing pdf images Doyley, Marvin M.
     [not found] ` <52f1d2ee-b964-39ac-3c96-674ad7b6137e@yahoo.com>
2017-03-17 13:48   ` Doyley, Marvin M.
2017-03-21 10:34     ` Julian M. Burgos
2017-03-22  0:22       ` Doyley, Marvin M.
2017-04-05  3:22         ` Kaushal Modi
2017-04-05  9:21           ` Julian M. Burgos
2017-04-05 11:52             ` Kaushal Modi
2017-04-05 15:23               ` Kaushal Modi
2017-04-06 15:02               ` Julian M. Burgos
2017-04-09 22:06 ` Eduardo Mercovich
2017-04-10  0:00   ` Doyley, Marvin M.
2017-04-10 16:51     ` Eduardo Mercovich
2017-04-12 13:05       ` Doyley, Marvin M.
     [not found]     ` <c8efd5b805e447aba02e063b2f4b5327@HE1PR01MB1898.eurprd01.prod.exchangelabs.com>
2017-04-10 17:06       ` Eric S Fraga [this message]

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.orgmode.org/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=877f2s9oq9.fsf@t3610 \
    --to=e.fraga@ucl.ac.uk \
    --cc=emacs-orgmode@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).